cl__1 = 0.1;
Point(1) = {0, 0, 0, 0.1};
Point(2) = {10, 0, 0, 0.1};
Point(3) = {10, 5, 0, 0.1};
Point(4) = {0, 5, 0, 0.1};
Point(5) = {5, 0, 0, 0.1};
Point(6) = {3, 0, 0, 0.1};
Point(7) = {7, 0, 0, 0.1};
Line(1) = {1, 6};
Line(2) = {7, 2};
Line(3) = {2, 3};
Line(4) = {3, 4};
Line(5) = {4, 1};
Circle(6) = {7, 5, 6};
Line Loop(8) = {4, 5, 1, -6, 2, 3};
Plane Surface(8) = {8};
Physical Line(20) = {5};
Physical Line(30) = {1, 2, 6};
Physical Surface(1) = {8};
